This listing includes AI condition scoring, neighbourhood intelligence, and market valuation data — giving you a complete picture before you visit. Compare rental yield, price per square metre, and location strength against the broader Portuguese market to assess whether this property fits your investment strategy.
4-bedroom, 2-bathroom duplex of 132 m², energy rating D. Located on rua dos Três Moinhos, Ericeira parish, Mafra municipality, Lisbon district. This duplex features a spacious attic conversion with two additional bedrooms and a terrace that offers unobstructed sea views, enhancing the living experience in a sought-after coastal location.
The valuation. The asking price of €519,000 is significantly above the fair value of €263,717, representing an overvaluation of €255,283 (49.2%). This pricing reflects a market that may not support such a premium. Buy-to-flip angle. A flip strategy would require a lower purchase price to accommodate renovation costs and achieve a decent profit margin, especially given the current overvaluation. The current price limits potential for successful resale. Buy-to-let angle. Given the gross yield of 0%, a buy-to-let strategy appears infeasible; expenses exceed potential rental income, making this property a poor long-term investment for rental purposes.
Fair value modelled at €263,717 from the area baseline, adjusted for condition and location. Asking €519,000 sits €255,283 (49.2%) above — overpriced versus fair value.
Asking €519,000 versus the rua dos Três Moinhos area baseline of €548,196 (€4,153/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 78/100 (Condition 72 · Materials 80 · Room dimensions 80). Above-median finish quality lifts fair value versus a baseline unit needing CapEx.
Neighbourhood score 47/100 (Housing Market 50 · Amenities 45 · Economic 45 · Tenant Quality 45). Softer demand indicators apply a discount to baseline.
rua dos Três Moinhos
Area baseline €548,196 + condition +€5,362 + location -€3,138 = modelled fair value of €263,717 (€1,998/m²), a €255,283 (49.2%) gap versus the €519,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua dos Três Moinhos | Subject | €519,000 | €3,932 | — | 72 | 47 |
| Ericeira · 6fbc0c | Active | €580,000 | €5,421 | 37.9% | 79 | 59 |
| Ericeira · 02424b | Active | €695,000 | €7,554 | 92.1% | 85 | 57 |
| Ericeira · 024246 | Active | €720,000 | €10,141 | 157.9% | 72 | 65 |
| largo Pocinhos | Active | €414,000 | €4,224 | 7.4% | 76 | 55 |
| Median comp | €637,500 | €6,488 | 65.0% | 78 | 58 |
Long-term rental The 4-bed duplex in Ericeira has an unjustified listing price of €519,000 compared to its fair value of €263,717, indicating it is overpriced by 49.2%. With a gross yield of 0% and a neighbourhood rating of 47/100, this property lacks the attractiveness and rental demand needed for a successful long-term investment. Buy-and-hold As an investment to hold, this duplex presents considerable risk due to its significant price gap from fair value, with the listing currently at €519,000. The suburban context and low tenant quality ratings further suggest that holding this property may not yield satisfactory returns in the long term. Not ideal for: The property is not suitable for short-term vacation rental or the luxury market due to its inflated price and poor neighbourhood ratings.
Economic and Tenant Instability With both economic stability and tenant stability scores at 45/100, there is a heightened risk of fluctuating rental income and potential vacancy issues, indicating an unstable investment environment.
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Comparables, condition and location workings, yield and time-to-sell. Written up and emailed to you.
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